Ham Radio Classified Ads A Free Service by KA9FOX & QTH.com

Classifieds Home - Feedback Forum - Swap Chat Board - Safe Trading Tips
Search Ads - Place Ad - Edit Ad - Delete Ad - Callsign Lookup - Make Donation
Contact KA9FOX - Banner Advertising - Web Hosting - Ham Radio Homes

View All Banners     Advertise Here

Click Here to Enlarge Photo

MISC - FS: TXRX repeater duplexer 28-70-02 I have for sale this nice repeater duplexer. Tunes into ham band with no problems. $375 The TX RX 28-70-02 is a Vari-Notch® Duplexer designed for 450-470 MHz frequencies with a 5 MHz split, capable of handling up to 350 watts of transmit power. It's a rack-mountable unit, typically used for simultaneous operation of a transmitter and receiver (or two transmitters) sharing a common antenna. The duplexer requires tuning and is designed to minimize loss while providing necessary transmitter and noise suppression for repeater applications. Here's a more detailed breakdown: Frequency Range: 450-470 MHz. Split: 5 MHz. Power Handling: 350 watts. Circuit Type: Vari-Notch (also referred to as pseudo-bandpass), which offers a combination of series-tuned and parallel-tuned circuits, providing a deeper notch than series-notch designs. Mounting: Rack mountable, specifically designed for 19" racks. Key Features: Listing #1739322 by K2ZZ Submitted on 08/11/25 Submitted from pool-71-172-55-72.nwrknj.fios.verizon.net Click to Contact Back to Previous Page

View All Banners     Advertise Here